Newbie confused???? 5sfte, Numbers and how everthing relates! Options

[urbandork]

Ok im slowly doing a 5sfte. However when it comes to the fuel delivery system i get conused.

Things that im confused about
FMU's
Boost Contorller
Boost timing managment.
225 lph pump
330cc injectors

Ok how do they all relate and work together? What would happen with out them? which ones can i do with out asap and which ones can i put on later?

So far Im confused on the whole fmu thing. What are the ratio numbers representing and how does this relate to me? i suspect they are fuel compression numbers or something? How does it change the fuel flow?? if it even does that? How does a 2 bar map sensor get into this equation.

Boost contorller? what does it do i assume it has something with controlling boost but how and in what way? Fuel ??? Does it jsut mess around with the a/f mixture isnt this what a fmu does? Is it the same as an FMU? im so lost?

Whats all this talk about how much load is on the injectors and the % numbers? what r these number?

BTM retards boost right? can i jsut redo the timing myself? Or does it only retard it when there is boost? Can i run 8 psi with out retarding my timming?

225 lph pump. This just pumps more fuel into the chamber right?

330cc injectors. These allow for more fuel to be sparyed into the chambers right?

I have searched both this forum and google and i seem only to get more confused. I dont like putting something in my car i dont understand or explain how it works. Thus y im asking and want to understand how these things work.

Thanks a million in advanced cus omg im so confused.

This post has been edited by urbandork: Mar 11, 2005 - 10:34 PM

[Hanyo]

its gets quite confusing

Think of it this way... the fuel pump has no way of choosing how much fuel it puts out, it just keep pumping away. So you need a fuel pressure regulator. What the fuel pressure regulator does is, it returns fuel back to the fuel tank after it reaches a certian psi, therefore controlling the fuel pressure.. The fuel ratio is, how much fuel the regulator keeps and how much it lets by and back into the fuel tank.

boost timing management... this unit retards the timing with a turn of a nob. This is help full for people who have obd II ecu's. You can retard your timing manually by turning the distributor. You MUST retard timing for a boosted motor.